Sports fans know what they want and when they want to view it, and so it is up to broadcasters to meet those expectations, whether they be traditional outlets such as Sky Sports, or new entrants to that market such as Amazon. That is especially the case for younger sports fans who have grown up with on demand entertainment, accompanied by their social media feed. That was the view expressed by Mark Cuban, the owner of the Dallas Mavericks and an influential tech investor, on an All-Star panel in Beverley Hills yesterday. He was joined on that stage by Jeffrey Blackburn, senior vice president of worldwide business development at Amazon and David Zaslav, CEO of Discovery Communications.